DM9010BI
Industrial-temperature Single Chip Ethernet Controller with General Processor Interface
internal MII interface.
0 = Normal operation
0.6-0.0
Reserved
0,RO
Reserved
Read as 0, ignore on write
8.2 Basic Mode Status Register (BMSR) - 01
Bit
Bit Name
Default
Description
1.15
100BASE-T4
0,RO/P 100BASE-T4 Capable
1 = DM9010BI is able to perform in 100BASE-T4 mode
0 = DM9010BI is not able to perform in 100BASE-T4 mode
1,RO/P 100BASE-TX Full Duplex Capable
1.14
1.13
100BASE-TX
full-duplex
1 = DM9010BI is able to perform 100BASE-TX in full duplex mode
0 = DM9010BI is not able to perform 100BASE-TX in full duplex
mode
100BASE-TX
half-duplex
1,RO/P 100BASE-TX Half Duplex Capable
1 = DM9010BI is able to perform 100BASE-TX in half duplex mode
0 = DM9010BI is not able to perform 100BASE-TX in half duplex
mode
1.12
1.11
10BASE-T
full-duplex
1,RO/P 10BASE-T Full Duplex Capable
1 = DM9010BI is able to perform 10BASE-T in full duplex mode
0 = DM9010BI is not able to perform 10BASE-TX in full duplex mode
1,RO/P 10BASE-T Half Duplex Capable
10BASE-T
half-duplex
1 = DM9010BI is able to perform 10BASE-T in half duplex mode
0 = DM9010BI is not able to perform 10BASE-T in half duplex mode
1.10-1.7
1.6
Reserved
0,RO
1,RO
Reserved
Read as 0, ignore on write
MII Frame Preamble Suppression
1 = PHY will accept management frames with preamble suppressed
0 = PHY will not accept management frames with preamble
suppressed
MF preamble
suppression
1.5
1.4
Auto-negotiation
Complete
0,RO
Auto-negotiation Complete
1 = Auto-negotiation process completed
0 = Auto-negotiation process not completed
Remote fault
0, RO/LH Remote Fault
1 = Remote fault condition detected (cleared on read or by a chip
reset). Fault criteria and detection method is DM9010BI
implementation specific. This bit will set after the RF bit in the
ANLPAR (bit 13, register address 05) is set
0 = No remote fault condition detected
1.3
1.2
Auto-negotiation
ability
1,RO/P Auto Configuration Ability
1 = DM9010BI is able to perform auto-negotiation
0 = DM9010BI is not able to perform auto-negotiation
0,RO/LL Link Status
Link status
1 = Valid link is established (for either 10Mbps or 100Mbps
operation)
0 = Link is not established
The link status bit is implemented with a latching function, so that the
occurrence of a link failure condition causes the link status bit to be
cleared and remain cleared until it is read via the management
interface
Preliminary
32
Version: DM9010BI--DS-P01
January 12, 2010
DAVICOM [ DAVICOM SEMICONDUCTOR, INC. ]
